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<?php
/**
* @package Internals
* @since 1.7.0
* @version 1.7.0
*/
// Avoid direct calls to this file.
if ( ! class_exists( 'WPSEO_Video_Sitemap' ) ) {
header( 'Status: 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
/**
*****************************************************************
* Wistia Video SEO Details
*
* @link http://wistia.com/doc/data-api For the API (but needs a API key, while oEmbed
* actually already gives us what we need).
*
* Example JSON response format with iframe response [2014/7/22]:
* {
* "version":"1.0",
* "type":"video",
* "html":"<iframe src=\"//fast.wistia.net/embed/iframe/ms9j4z4sdg\" allowtransparency=\"true\" frameborder=\"0\" scrolling=\"no\" class=\"wistia_embed\" name=\"wistia_embed\" allowfullscreen mozallowfullscreen webkitallowfullscreen oallowfullscreen msallowfullscreen width=\"960\" height=\"540\"></iframe>",
* "width":960,
* "height":540,
* "provider_name":"Wistia, Inc.",
* "provider_url":"http://wistia.com",
* "title":"Puppies",
* "thumbnail_url":"https://embed-ssl.wistia.com/deliveries/d5f1c25578e8748cc5b6b946e02e654d9f9db47a.jpg?image_crop_resized=960x540",
* "thumbnail_width":960,
* "thumbnail_height":540,
* "duration":23.268
* }
*/
if ( ! class_exists( 'WPSEO_Video_Details_Wistia' ) ) {
/**
* Class WPSEO_Video_Details_Wistia
*/
class WPSEO_Video_Details_Wistia extends WPSEO_Video_Details {
/**
* Sprintf template to create a URL from an ID.
*
* @var string
*/
protected $url_template = 'http://fast.wistia.net/medias/%s?embedType=iframe';
/**
* Information on the remote URL to use for retrieving the video details.
*
* @var array
*/
protected $remote_url = array(
'pattern' => 'http://fast.wistia.com/oembed?url=%s',
'replace_key' => 'url',
'response_type' => 'json',
);
/**
* Whether or not to use the fallback method to retrieve certain information on the video.
*
* @var bool
*/
protected $use_fallback = false;
/**
* Frame source - used by fallback method.
*
* @var string
*/
protected $frame_source;
/**
* Instantiate the class
*
* Adjust the video url before passing off to the parent constructor
*
* @param array $vid The video array with all the data.
* @param array $old_vid The video array with all the data of the previous "fetch", if available.
*
* @return \WPSEO_Video_Details_Wistia
*/
public function __construct( $vid, $old_vid = array() ) {
if ( isset( $vid['id'] ) ) {
$vid['url'] = sprintf( $this->url_template, rawurlencode( $vid['id'] ) );
}
parent::__construct( $vid, $old_vid );
}
/**
* Use the "new" post data with the old video data, to prevent the need for an external video
* API call when the video hasn't changed.
*
* Match whether old data can be used on url rather than video id
*
* @param string $match_on Array key to use in the $vid array to determine whether or not to use the old data
* Defaults to 'url' for this implementation.
*
* @return bool Whether or not valid old data was found (and used)
*/
protected function maybe_use_old_video_data( $match_on = 'url' ) {
return parent::maybe_use_old_video_data( $match_on );
}
/**
* Retrieve information on a video via a remote API call
*
* @return void
*/
protected function get_remote_video_info() {
if ( is_string( $this->vid['url'] ) && $this->vid['url'] !== '' ) {
// Temporarily change the url.
$real_url = $this->vid['url'];
if ( strpos( $this->vid['url'], 'embedType=' ) !== false ) {
// Avoid adding embedType twice.
$this->vid['url'] = str_replace( array( 'embedType=api', 'embedType=iframe', 'embedType=popover', 'embedType=seo', 'embedType=async' ), 'embedType=seo', $this->vid['url'] );
}
else {
$this->vid['url'] = add_query_arg( 'embedType', 'seo', $this->vid['url'] );
}
parent::get_remote_video_info();
// Reset the url.
$this->vid['url'] = $real_url;
}
}
/**
* Check if the response is for a video
*
* @return bool
*/
protected function is_video_response() {
return ( ! empty( $this->decoded_response ) && isset( $this->decoded_response->type ) && $this->decoded_response->type === 'video' );
}
/**
* Determine whether or not the use of the fallback method is needed and set video details
* to their new values by passing off to the parent method
*/
protected function put_video_details() {
if ( ! empty( $this->decoded_response->html ) ) {
$this->decoded_response->html = stripslashes( $this->decoded_response->html );
if ( strpos( $this->decoded_response->html, '<div itemprop="video"' ) === false && preg_match( '`<iframe src=([\'"])([^\'"\s]+)\1`', $this->decoded_response->html, $match ) ) {
$this->use_fallback = true;
$response = $this->remote_get( $match[2] );
if ( is_string( $response ) && $response !== '' && $response !== 'null' ) {
$this->frame_source = $response;
}
}
}
parent::put_video_details();
}
/**
* Set the content location
*/
protected function set_content_loc() {
if ( $this->use_fallback === false ) {
if ( ! empty( $this->decoded_response->html ) && preg_match( '`<meta itemprop="contentURL" content="([^"]+)" />`', $this->decoded_response->html, $match ) ) {
$this->vid['content_loc'] = $match[1];
}
}
elseif ( ! empty( $this->frame_source ) && preg_match( '`<a href=([\'"])([^\'"\s]+)\1 id=([\'"])wistia_fallback\3`', $this->frame_source, $match ) ) {
$this->vid['content_loc'] = $match[2];
}
}
/**
* Set the video duration
*/
protected function set_duration() {
$this->set_duration_from_json_object();
}
/**
* Set the video height
*/
protected function set_height() {
$this->set_height_from_json_object();
}
/**
* Set the player location
*/
protected function set_player_loc() {
if ( $this->use_fallback === false ) {
if ( ! empty( $this->decoded_response->html ) && preg_match( '`<meta itemprop="embedURL" content="([^"]+)" />`', $this->decoded_response->html, $match ) ) {
$this->vid['player_loc'] = $match[1];
}
}
elseif ( ! empty( $this->frame_source ) ) {
if ( preg_match( '`"type":"flv","url":"([^"]*)"`', $this->frame_source, $match ) ) {
$flv = $match[1];
}
elseif ( preg_match( '`"type":"hdflv","url":"([^"]*)"`', $this->frame_source, $match ) ) {
$flv = $match[1];
}
if ( preg_match( '`"type":"still","url":"([^"]*)"`', $this->frame_source, $match ) ) {
$still = $match[1];
}
if ( preg_match( '`"accountKey":"([^"]*)"`', $this->frame_source, $match ) ) {
$account_key = $match[1];
}
if ( preg_match( '`"mediaKey":"([^"]*)"`', $this->frame_source, $match ) ) {
$media_key = $match[1];
}
if ( empty( $this->vid['duration'] ) ) {
$this->set_duration();
}
if ( isset( $flv, $still, $account_key, $media_key, $this->vid['duration'] ) ) {
$url = sprintf(
'https://wistia.sslcs.cdngc.net/flash/embed_player_v2.0.swf?videoUrl=%1$s&stillUrl=%2$s&controlsVisibleOnLoad=false&unbufferedSeek=true&autoLoad=false&autoPlay=true&endVideoBehavior=default&embedServiceURL=http://distillery.wistia.com/x&accountKey=%3$s&mediaID=%4$s&mediaDuration=%5$s&fullscreenDisabled=false',
$flv, // #1.
$still, // #2.
$account_key, // #3.
$media_key, // #4.
$this->vid['duration'] // #5.
);
$this->vid['player_loc'] = $this->url_encode( $url );
}
}
}
/**
* Set the thumbnail location
*/
protected function set_thumbnail_loc() {
$this->set_thumbnail_loc_from_json_object();
}
/**
* Set the video width
*/
protected function set_width() {
$this->set_width_from_json_object();
}
} /* End of class */
} /* End of class-exists wrapper */